Park Joong-hoon as Hwang Jae-sung

Lee Sun-kyun as Jeong Eui-chan

Lee Sung-min as Detective Jo

Kim Jung-tae as Detective Song

Ko Joo-yeon as Soo-yeon

Han Soo-yeon as Hyun-sook

Kang Ki-hwa as Hye-jin

Jeong Do-won as Detective Shin

Ahn Yong-jun as Detective Kim

Im Won-hee as Ph.D Ko

Lee Han-wi as Lee Yong-kab

Sung Yeol-seok as Metropolitan Detective

Lee Seung-cheol as Hyun-sook's father

Kim So-jin as Mapo Detective

Jang So-yeon as

Yoon Sung-won as

Oh Seong-soo as Detective

Bae Yong-geun as Investigator

Kim Woon as Conscripted Policeman